Induction cooker control method and control apparatus, and induction cooker apparatus

Abstract

The invention relates to an induction cooker control method and control apparatus, and an induction cooker apparatus. According to the control method, on the basis of measurement of an instantaneous current of a transduction coil, the instantaneous current is analyzed; a drive converter is controlled based on the analysis result to carry out outputting safely, thereby driving the transduction coil to work. The measurement of the instantaneous current of the transduction coil is carried out by a transduction coil signal detector; the analysis of the instantaneous current is carried out by a real-time determination circuit; and the control of the drive converter is carried out by the real-time determination circuit and a single-chip microcomputer controller jointly. The transduction coil signal detector and the real-time determination circuit are connected; and the real-time determination circuit is connected with the single-chip microcomputer controller and the drive converter mutually. On the basis of the control apparatus and method, multiple inductor cookers can work normally on the condition of interference existence, so that an induction cooker apparatus formed by assembling a plurality of inductor cookers can be manufactured. Therefore, production and living demands can be satisfied.

Description

Technical field: [0001] The invention relates to the technical field of electrical appliances and kitchen utensils, in particular to a control method, a control device and an induction cooker device for an induction cooker. Background technique: [0002] A heating device that directly converts energy by an electromagnetic field is hereinafter referred to as an "induction cooker". General induction cooker has the following disadvantages: [0003] 1. The entire design does not take into account the working conditions of direct interference from external electromagnetic fields, such as: [0004] a. The transducing coil, the resonant capacitor and the IGBT driving the converter are only regarded as switching and resonant operations, and the collector voltage of the IGBT and the voltage difference between the two points of the coil are measured in a simple way to judge safe synchronization signal to turn on the IGBT driving the converter; [0005] b. Use a low-resistance resis...

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Problems solved by technology

[0007] 3. The harmonics generated by high-frequency pulse width modulation are not completely processed, so that they generate EMC interference to other electrical appliances

[0008] It is precisely because of the above reasons that the current induction cookers generally work alone, and it is impossible to realize that multiple induction cookers work at the same time in the presence of mutual interference.

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